Question

In 3 saci sunt 798 kg de grau.Cate kg sunt in fiecare sac, daca in primul si in al doilea sunt 400 kg, iar in al doilea si in al treilea 498 kg ?

Answer 1

a+b+c=798
a+b=400
b+c=498
400+c=798
c=798-400
c=398
b+398=498
b=498-398
b=100
a+100=400
a=400-100
a=300
300+100+398=798

Answer 2

798-400=398 ( al treilea sac)
498-398= 100 ( in al doilea sac)
400-100= 300 ( in primul sac)
verificare: 398+300+100= 798